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Finding the Fourth Proportional to 1,850.52, 2,775.78 and 696.36

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Solution

The fourth proportional to 1,850.52, 2,775.78 and 696.36 is: 1,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.52 : 2,775.78 = 696.36 : x
  2. Step 2: Convert to fraction form
    1,850.52/2,775.78 = 696.36/x
  3. Step 3: Cross multiply
    1,850.52x = 2,775.78 × 696.36
  4. Step 4: Simplify right side
    1,850.52x = 1,932,942.16
  5. Step 5: Solve for x
    x = 1,932,942.16/1,850.52
  6. Step 6: Final answer
    x = 1,044.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.